TRS is the tool for filing and responding to arbitration cases online. Step 7: Enter your finding based on the dispute and evidence submitted.Asp for case information. 1.To mark a docket as related, select the drop-down menu located in the Relationship column of the listing and change it from Not Related to Companion Claim. 2. Any type of dispute, claim or controversy arising out of business dealings with any FINRA brokerage firm1 can be resolved in mediation or arbitration.